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#include <stdint.h>
#include <stdlib.h>
#include "vga.h"
#include "sound.h"
#include "entities.h"
#include "game.h"
#include "player.h"
#include "effect.h"
#include "pickup.h"
#define MAX_FRAME 3
#define MAX_BONUS_FRAME 4
#define MAX_TTL ((uint16_t)800)
typedef enum
{
PICKUP_TIME = 0,
PICKUP_BONUS,
PICKUP_PICKAXE,
PICKUP_GOLD_KEY,
PICKUP_SILVER_KEY,
} PickupType;
static const Rect frames_in[2 * 4] =
{
{ 96, 16, 144, 144 },
{ 128, 16, 144, 144 },
{ 112, 16, 144, 144 },
/* not used */
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 }
};
static const Rect frames[2 * 4] =
{
/* time */
{ 80, 16, 144, 144 },
/* pickaxe */
{ 64, 16, 144, 144 },
/* gold key */
{ 0, 0, 144, 144 },
/* siver key */
{ 0, 0, 144, 144 },
/* not used */
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 }
};
static const Rect frames_bonus0[2 * 4] =
{
{ 0, 48, 144, 144 },
{ 16, 48, 144, 144 },
{ 32, 48, 144, 144 },
{ 48, 48, 144, 144 },
/* not used */
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 }
};
static const Rect frames_bonus1[2 * 4] =
{
{ 0, 64, 144, 144 },
{ 16, 64, 144, 144 },
{ 32, 64, 144, 144 },
{ 48, 64, 144, 144 },
/* not used */
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 }
};
static const Rect frames_bonus2[2 * 4] =
{
{ 64, 64, 144, 144 },
{ 80, 64, 144, 144 },
{ 96, 64, 144, 144 },
{ 112, 64, 144, 144 },
/* not used */
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 },
{ 0, 0, 144, 144 }
};
static const Rect *frames_bonuses[] =
{
frames_bonus0, frames_bonus1, frames_bonus2
};
void pickup_time_init(Entity *e)
{
e->frames = (const Rect *)frames_in;
e->flags = PICKUP_TIME;
e->counter = MAX_TTL * 2 + (rand() % MAX_TTL);
e->update = pickup_wait_update;
}
void pickup_bonus_init(Entity *e)
{
e->frames = (const Rect *)frames_in;
e->flags = PICKUP_BONUS;
e->counter = MAX_TTL + (rand() % MAX_TTL);
e->update = pickup_wait_update;
}
void pickup_pickaxe_init(Entity *e)
{
e->frames = (const Rect *)frames_in;
e->flags = PICKUP_PICKAXE;
e->counter = MAX_TTL / 2 + (rand() % MAX_TTL);
e->update = pickup_wait_update;
}
void pickup_wait_update(Entity *e)
{
if (e->counter-- == 0)
{
e->update = pickup_in_update;
sound_play_efx(EFX_WARP);
}
}
void pickup_in_update(Entity *e)
{
if (e->delay++ == WALK_DELAY - 2)
{
e->delay = 0;
e->frame++;
if (e->frame == MAX_FRAME)
{
switch (e->flags)
{
case PICKUP_TIME:
e->frames = (const Rect *)frames;
e->frame = 0;
break;
case PICKUP_BONUS:
e->frames = (const Rect *)frames_bonuses[rand() % 3];
e->frame = 0;
break;
case PICKUP_PICKAXE:
e->frames = (const Rect *)frames;
e->frame = 1;
break;
}
e->counter = 0;
e->update = pickup_update;
}
}
}
void pickup_update(Entity *e)
{
if (e->counter++ == MAX_TTL)
{
effect_out_init(e);
sound_play_efx(EFX_WARP);
return;
}
/* the bonuses have an animation */
if (e->flags == PICKUP_BONUS)
{
e->delay++;
/* first frame lasts longer */
if ((e->frame == 0 && e->delay == WALK_DELAY * 4)
|| (e->frame != 0 && e->delay == WALK_DELAY - 2))
{
e->delay = 0;
e->frame++;
if (e->frame == MAX_BONUS_FRAME)
e->frame = 0;
}
}
if (player_collision_pickup(e))
{
switch (e->flags)
{
case PICKUP_TIME:
reset_time();
break;
case PICKUP_BONUS:
add_score(250);
break;
case PICKUP_PICKAXE:
add_pickaxe();
break;
}
e->used = 0;
sound_play_efx(EFX_PICKUP);
}
}
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